Ive seen quite a few websites shutdown last year by injunctions that took only 24 hours to get in the US because the website was involved in copyright/Trademark infringement.(torrent sites for copyright, Chinese websites selling poduct knockoffs for trademark but hosted in the US)
Assuming you can use this in your current situation you have an Ace.
I think the possibility of having his website shutdown and business closed in 24 hours seeing as you hold the trademark and he let his lapse and the loss of income that would bring to his business would ruin him.
Balls in a vice is the correct terminology
Sell him the trademark and he pays all legal fees to boot...
No lawyer, just techie and not sure how much it helps you but its some law the big music and movie labels got passed that allows injunctions in 24 hours or maybe its 48 to shutdown a website untill the matter is resolved in the courts.
Maybe can help you, think its worth checking into.
Assuming you can use this in your current situation you have an Ace.
I think the possibility of having his website shutdown and business closed in 24 hours seeing as you hold the trademark and he let his lapse and the loss of income that would bring to his business would ruin him.
Balls in a vice is the correct terminology

Sell him the trademark and he pays all legal fees to boot...
No lawyer, just techie and not sure how much it helps you but its some law the big music and movie labels got passed that allows injunctions in 24 hours or maybe its 48 to shutdown a website untill the matter is resolved in the courts.
Maybe can help you, think its worth checking into.